This short note constructs Mobility Zones to facilitate the discussion on the geographic extent of individual mobility restrictions to control the spread of Covid-19. Mobility Zones are disjoint sets of counties where a given level of individual mobility directly or indirectly connects all...

We estimate the impact of more stringent minimum lot size restrictions across small border areas of neighboring communities using data from the Wharton Residential Land Use Regulatory Index (WRLURI) surveys. Economically meaningful effects are found on the built environment, not just house...

We document a Kuznets curve for construction productivity in 20th-century America. Homes built per construction worker remained stagnant between 1900 and 1940, boomed after World War II, and then plummeted after 1970. The productivity boom from 1940 to 1970 shows that nothing makes technological...

We use the price effects caused by the passage of rent control in St. Paul, Minnesota in 2021, to study the transfer of wealth across income groups. First, we find that rent control caused property values to fall by 6-7%, for an aggregate loss of $1.6 billion. A calibrated model of house prices...

According to ECB (2023) and European Systemic Risk Board (2022), Swedish owner-occupied housing (OOH) was overvalued by about 55% in 2021q2, the largest overvaluation in the EU and EEA; according to European Commission (2023c), by about 30% in 2022. These assessments affect warnings and...

Does the ability to generate verifiable digital financial histories, with customers having data-sharing rights, improve credit access? We answer this using India's launch of an Open-Banking based public digital payment infrastructure (UPI). Using rarely available data on the universe of consumer...

We develop a dynamic urban model combining features of quantitative spatial and macro-housing models. It includes multiple locations, forward-looking households, commuting, costly migration, uninsurable income risk, housing tenure choice, and housing frictions. The model operates in continuous...

The standard view of housing markets holds that the flexibility of local housing supply-shaped by factors like geography and regulation-strongly affects the response of house prices, house quantities and population to rising housing demand. However, from 2000 to 2020, we find that higher income...

A key reason for the existence of cities are the externalities created when people cluster together in close proximity. During Covid, such interactions came with health risks and people found other ways to interact. We document how cities changed during Covid and consider how the persistence of...

Rising interest rates can create "mortgage rate lock" for homeowners with fixed rate mortgages, who can hold onto their low rates as long as they stay in their homes but would have to take on new mortgages with higher rates if they moved. We show mobility rates fell in 2022 and 2023 for...